My uncle was arrested for disguising his products with false labels and is currently in prison.
Some fake attire doesn't make you look fake, it makes you disappear. This fake attire is fake surroundings. So, if you're in a shrub, it's shrub attire. If you're in the darkness, it's dark attire. This is camouflage.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.